Far-infrared powder is a white powder composed of various substances. Its primary feature and function are its ability to emit more far-infrared rays (higher infrared radiation rate) than normal objects. It is mainly used in high-temperature areas for boiler heating, paint baking, and heating and drying of wood and food; in normal temperature areas, it is used to produce various far-infrared thermal insulation materials, such as far-infrared ceramic powder, far-infrared ceramic fiber, far-infrared ceramic polyester, and functional ceramic materials. Far-infrared ceramic coatings (including nano-titanium oxide coatings) have a catalytic oxidation function, generating negative one-valent hydroxide ions under sunlight (especially UV light), and possess bactericidal properties.